next match on 31 July, he scored his first goal for Esteghlal in a 2–1 loss against Esteghlal Khuzestan. He scored a header in a 1–1 draw against Machine Sazi on 11 September. On 12 February 2017, Esteghlal defeated city rivals Persepolis 3–2, with Rezaei scoring the third goal. On 27 February 2017, in an AFC Champions League group-stage match against Al-Taawoun FC, he scored 53 seconds after kick-off; it was the fastest goal scored by an Iranian in an AFC Champions League match. On 11 April, he scored another champions league goal against Lokomotiv Tashkent to equalise the scoreline, as the game ended 1–1. In the following champions league game against Al-Ahli, the match finished at 1–1, where he scored another equaliser. On 4 May 2017, he assisted Jaber Ansari's goal in Esteghlal's 2–1 win against Sepahan. This assist made him the top provider in the league. He finished the season with 7 goals and 9 assists as Esteghlal finished the season as runners-up in the league. On 10 May, he scored and assisted in the champions league match against Al-Taawoun as Esteghlal beat their opponent 2–1 and qualified to the next round. On 22 May, he scored a late winning goal from the penalty spot against Al Ain the match finished 1–0. Charleroi On 14 June 2017, after rumours that he would sign a contract extension with Esteghlal, Rezaei signed a two-year contract, with an option to extend for another two years, with Belgian Pro League club Sporting Charleroi. He was assigned the shirt number 9. 2017–18 season Rezaei made his debut for the club in a 1–0 victory over Kortrijk on 29 June 2017, coming on as substitute for Chris Bedia. On 26 August, he scored his first goal for the club, against Zulte Waregem. Later in that match he scored his second goal to help win the match 3–2. After his stunning performance in September and scoring two goals in four games, Rezaei was voted as club's best player of the month by the fans. On 18 November, he scored a brace against KV Mechelen and dedicated his goals to his fellow citizens who suffered in earthquake. 2018–19 season Rezaei started the new season by scoring a brace in a 4–1 victory over Eupen. Club Brugge On 22 August 2018, Rezaei joined Club Brugge for a reported club-record fee of €5,000,000. Return to Charleroi On 27